Download Introduction-to-Mechatronics(ppt)

School of Electronics Engineering
Introduction to Mechatronics
By,
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Agenda
• Introduction
▫ Examples of mechatronic systems
• Mechatronic System components
▫ Example: Inkjet printer
• Measurement systems
▫ Example: Digital Thermometer
• Case Study
▫ DC motor speed controller
▫ Stepper motor position and speed controller
▫ DC motor speed and position controller.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Introduction
School of Electronics Engineering
Mechanical + Electronics
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Introduction
Mechanical + Electronics= MechaTronics
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Mechatronics
• The term mechatronics is used to denote a
rapidly developing, interdisciplinary field of
engineering dealing with the design of products
whose function relies on the integration of
mechanical
and
electronic
components
coordinated by a control architecture.
• The word mechatronics was coined in Japan
in the late 1960s, spread through Europe,
and is now commonly used in the United
States.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
• What are the primary disciplines important
in the design of mechatronic systems…?
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
• What are the primary disciplines important
in the design of mechatronic systems…?
▫
▫
▫
▫
Mechanics,
Electronics,
Controls, and
Computer engineering.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Expectations from a mechatronic
system engineer
• Mechatronics system engineer must be able to
▫ design and select
▫ analog and digital circuits,
▫ microprocessor-based components,
▫ mechanical devices,
▫ sensors and actuators, and
▫ controls so that the final product
achieves a desired goal.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
The qualities of mechatronic system
designer
• Mechatronics system engineer must be a
generalist,
• Willing to seek and apply knowledge from a
broad range of sources.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Examples of mechatronic systems
• An aircraft flight control and navigation system.
• Automobile air bag safety system and antilock
brake systems.
• Automated manufacturing equipment such as
robots.
• Numerically controlled (NC) machine tools.
• smart kitchen home appliances such as bread
machines and clothes washing machines, and
even toys.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Mechatronic system components
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Inkjet printer components
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Measurement Systems
• The transducer is a sensing device that converts a
physical input into an output, usually a voltage.
• The signal processor performs filtering,
amplification, or other signal conditioning on the
transducer output.
▫ The term sensor is often used to refer to the
transducer or to the combination of transducer and
signal processor.
• Finally, the recorder is an instrument, a computer,
a hard-copy device, or simply a display that
maintains the sensor data for online monitoring or
subsequent processing.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Digital Thermometer
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Case Study
1. DC motor power-op-amp speed
controller.
• Aim: Controlling the rotational speed of a
direct current (DC) permanent magnet motor.
• Major components used,
▫
▫
▫
▫
▫
▫
Pot.
LED.
Microcontroller.
Digital to Analog converter.
Power amplifier.
DC motor.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Functional diagram of the DC motor
speed controller
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Photograph of the power-amp speed controller
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
2. Stepper motor position and
speed controller
• Aim: Controlling the position and speed of a stepper
motor, which can be commanded to move in discrete
angular increments.
• Main components used,
▫ Pot.
▫ Push Buttons.
▫ Toggle switch.
▫ LED.
▫ Microcontroller(PIC).
▫ Analog to Digital converter.
▫ Stepper motor driver.
▫ Stepper motor.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Functional diagram of the stepper
motor position and speed controller
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Photograph of the stepper motor
position and speed controller
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
3. DC motor position and speed
controller
• Aim: Control of position and speed of
a permanent magnet DC motor.
• Main components used,
 Liquid crystal display (LCD).
 H-bridge.
 Digital encoder.
 Microcontrollers(PIC) 2 nos.
 Quadrature decoder and counter.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Functional diagram for the DC motor
position and speed controller.
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Photograph of the DC motor position
and speed controller
Freshman Basic Electronics Team (2016-17)
School of Electronics Engineering
Thank you
Freshman Basic Electronics Team (2016-17)